3d) Like some jams? What Big Apple's mayor must do (5) R?N?Y
11a) Final score (3) ??T
21d) Honey can start top get like 3 perhaps (7) ????I?G
25a) Bunyan's hero, devout student, resolute (7) ????R?M
25d) Pick soft fruit first (5) ?LU?P - Plump?
Is 20 across Rheum? All help greatly appreciated